Materials Data on Sr2InI5 by Materials Project
Sr2I5In crystallizes in the tetragonal I4/mcm space group. The structure is two-dimensional and consists of four indium molecules and two Sr2I5 sheets oriented in the (0, 0, 1) direction. In each Sr2I5 sheet, Sr2+ is bonded in a 8-coordinate geometry to eight I1- atoms. There are a spread of Sr–I bond distances ranging from 3.29–3.53 Å. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a square co-planar geometry to four equivalent Sr2+ atoms. In the second I1- site, I1- is bonded in a 3-coordinate geometry to three equivalent Sr2+ atoms.